Fuel spreader



Patented- Nov. 3, 1925.

UNITED., STATES.

' PATENT foll-frfl'crs..-

WILBUBT wann, or STE. GENEVIEVE, mrssou'nl.

FUEL SPREADER.

Application mea' January 2s, 1925. serial No.-4,e42.

' An object of the invention is the provi` sion of a spreader which, though acting 15' without moving parts, will spread fuel evenly over the grate bars.

A further object of the invention is the provision of a spreader whichmay be built into the masonry of a furnace and form 20 part thereof.

A furV her ob'ect of the invention is the provision ofa finel spreader that will serve to shield the fuel-delivering means fromthe direct lare of the heat of the furnace.

Furt er objects of the invention will appearin the following description, when read in connection with the accompanying drawing, showing illustrative embodiments of the invention and wherein- Fi 1 is a vertical transverse section of the evice applied to a furnace for heating a boiler; I

Fig. 2 isga longitudinal section on line 2--2 of Fig." 1;V f Fig. 3 is -a of Flg. 1; y

`Fig. 4 is a-f-vertical longitudinal section of a form of the-device applied to a furnace-adapted. to the heating of a kiln; 1 Fi 5 isa transverse section on line 5-5 of Fig. 4; and `V Fig. 6 is a bottom plan view ofone of the spreading elements of Fig. 4.

Asf'shown in- Fi a are provided opemn 10, 11 for the admisn sion of fuel to channels 12, 13,14, 15.

To apportion the fuel `to the companion channels 12, 13 and 14, 15, there are shown wedge members 16,17 placed at the juncim vture of the paired channels.

The channels 12, 14 are adapted to deliver their fuel adjacent the lateral fur- 1 to '3 inclusive, there nace Walls, While the channels 13, 15 open?A ing through these walls at higher points, are adapted to deliver the fuel toward the center of the grate bars.

To distribute the fuel laterally ofy the channels and longitudinally of the grate bars, there are shown diverging grooves 18, 19 at the outlet of each of the channels 12 to inclusive, together with a central groove 20 at each outlet. The angle, depth,

and width of the grooves are properly adthe fuel over the grate bars 21 of the furnace.

As shown in Figs. 4 to- 6 inclusive, the invention is applied to a furnace for heating a kiln 22, and is Vapplied to the furnace disclosed in my Patent No. 1,480,973, dated January 15, 1924. In this form of the invention, there being no 'boiler present over the gratebars, the spreader is placed justed to provide an even distribution of in the crown of the arch and the separate Jlychannels23, 24, corresponding to 12 to.15 yinclusive of Fig, 1, are very much shortcned.

The wedge-shaped member -25 is c'on-- I fstruc'ted with its lower surface Vfalling in the surface of the arch. The channel 26 leading to the member 25 `is formed with downwardly diverging sides to prevent the Y fuel clogging therein. The wedge-shaped member in this form of the device, as indicatedin Fig. 6, has its base'formed widerv Y Y at the central lportion 27 than at its ends 28, detail section on line 3 3 1/ 29,A whereby to spreadthe fuel which falls -t the center of the grate bars to some extent. The openings of the channels 23, 24laterally are formed with grooves of the nature 32 tov provide a proper longitudinal distri-y bution of the fuel u on the grate bars.

Some of the fuel nels 23, v24 will strike the side walls of the furnace and ricochet to supply fuel to the position mid-way between the center and the sides. This action, together with the form of the wedge-shaped member 25 and the grooves 30, 31 `is found to give al suiliciently even distribution of fuel to provide .for proper :maintenance of fire. A

om the delivery chan- Minor changes may be made in the physical embodiment of the invention -and any desired device may be" used to deliver fuel to the device Without departing from the spirit of the invention.

Y I claim:

1. In a furnace, in combination, a furnace wall provided with a fuel admittingr passage and diverging channels leading downwardly therefrom to deliver fuel upon the grate of the furnace, each of said channels being formed in one of the surfaces thereof at its outlet with diverging fuel defiecting grooves. i

.2. A furnace comprising, iii combination,

a furnace Wall liavinga fuel admitting' passage and downwardly diverging branches leading from said passage and nopening; above tlie grate of the furnace, eacli of said passages adjacent'its outlet into the furnace being fori'ned with fuel delecting grooves diverging transversely of said branch (livergence and adapted to spread fuel escapingr from the passage over the grate.

3. A furnace comprising, in combination, a furnace wall foi-ined with a downwardlyy directed fuel admitting passage, and brauch passages forming continuations of said passage in` a downward direction, the plane of said branch being transverse to tlie axis of the furnace, a surface of each branch adjacent its openingr into the furnace being forinedvu'itli fuel deflecting {rooxes diverging in a direction parallel with the axis of the furnace, whereby to distribute fuel sub-' .stantially uniformly over the grate.

WVILBURT WARD. 

